전파통신특강 2, Lab 01

1. WR-95 waveguide open end radiator, a = 19.05mm, b=0.5a, S11, from fc(TE₁₀) to 2fc(TE₁₀)

d = √(a² + b²) = a √1.25 = 1.118a  → 2a = 1.789d

     f_c (TE₁₀)= c /(2a) = c / 1.789d

Frequency (cutoff): 7.86GHz

a = 19.05

b = 0.5a

Waveguide length L = 2a

Waveguide thickness t = 0.5

(1) Make a project template.

Project Template

New Template, Microwaves & RF / Optical, Anennas

Create Project Template: Waveguide(Horn,Cone,etc), Time Domain

Units: default (mm, GHz)

Frequency Min. : 7GHz

Frequency Max. : 16 GHz

Template name: waveguide

(2) Make a waveguide antenna structure.

A. Make waveguide using parameter symbols.

Modeling, Brick icon, ESC key, Name: solid1

Material : PEC

B. Make waveguide

Modeling, Picks, Pick Face or (f), 2 side select, shape tools, shape solid or thicken sheet

C. Modeling, Picks, Pick Face or (f), side select, Simulation, waveguide port

(3)Simulate

Simulation, setup solver, start

Port check

2D/3D Result, Port modes, Port1, e1

1D Result, S-Parameters, S11

2. Circular waveguide open end radiator diameter = 19.05mm, S11, from fc(TE₁₁) to 2fc(TE₁₁)

     f_c (TE₁₀)= c /1.706d

Frequency (cutoff): 9.23GHz

a = 19.05

Waveguide length L = 2a

Waveguide thickness t = 0.5

(1) Make a project template.

Project Template

New Template, Microwaves & RF / Optical, Anennas

Create Project Template: Waveguide(Horn,Cone,etc), Time Domain

Units: default (mm, GHz)

Frequency Min. : 8GHz

Frequency Max. : 19 GHz

Template name: waveguide

(2) Make a waveguide antenna structure.

A. Make waveguide using parameter symbols.

Modeling, Cylinder icon, ESC key, Name: solid1, Orientation: Z

Outer radius: a/2+t, Inner radius: a/2

X center:0      Y center:0

Z min: 0      Z max : L

Material : PEC

B. Modeling, Picks, Pick Face or (f), side select, Simulation, waveguide port

(3)Simulate

Simulation, setup solver, start

Port check

2D/3D Result, Port modes, Port1, e1

1D Result, S-Parameters, S11